Lecture (GREEN)-> lecture connected to page and lectureseries as mentioned above. lecture have property as public, follower, private and privilege
One of the lecture i.e lect1 is connected to the user by a realtion privileged.

User (RED) (here named Ann) - It is connected to page by follows relation and to 1 lecture mentioned above.

Initial Condition :-

We have to show the user all the public and follower lecture always for that we have the perfect query with no problem we get the required result.